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Post by carlstoys on Apr 23, 2016 11:44:51 GMT -5
I have an encore with a MGM 1-14 twist barrel that I just had Luke put a breech plug in over the winter, whenever I try and shoot 250 grain FTX bullets they are hitting the target sideways. I tried 52 and 58 grains of h4198. I have no problems shooting Xtp 250 grain bullets they shoot great. I am shooting both sabotless with a veggie wad and have been sized and load with a fair amount of pressure, two hand but not excessive. Any one have any ideas why the FTX's are tumbling? The accuracy doesn't seem bad just over an inch at 100 yards with the FTX's and under an inch with the XTP's.
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Post by ratsnakeboogy on Apr 23, 2016 12:15:14 GMT -5
Just over an inch for a tumbling bullet is crazy. Maybe just starting to tumble at 100? Try a group at 150. When I had a tumbling problem, I couldn't keep them on a 3x3 foot target. You may want to try a booster to get quicker obturation, but I just don't see how you could have a group like that with tumbling Bullets.
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Post by rambler on Apr 23, 2016 12:17:47 GMT -5
I'm not sure this would work in your situation but I was having the same issues with those Hornady 250's until I started using a duplex load. I was using 10/50 of blue dot and imr4198 w/veggie wad. I think in my barrel, it's got a Douglas on a break open H&R, it likes a little kick to get the bullet started in the grooves. I'm also using an arrowhead style plug with a .030 bushing right now. the barrel is 1:22.
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Post by rossman40 on Apr 23, 2016 13:03:35 GMT -5
You aren't smashing the tip with your bullet starter are you? My brother was doing that.
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Post by carlstoys on Apr 23, 2016 13:13:51 GMT -5
No I just checked again and it is not touching the tip. I think I might need to try a duplex load but I will need to get some powder for it as all I have is the H4198.
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Post by rossman40 on Apr 23, 2016 14:17:26 GMT -5
You could try to up it some. Maybe go up to 63-65gr. It does sound like you need a bit more smack on the bullet.
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Post by edge on Apr 24, 2016 6:58:50 GMT -5
I'll assume they are smooth sized, correct?
I'd say at the very least these would need to be very snug or a duplex, they are just not obturating enough to grab the rifling.
With a 14 twist stability should never be an issue.
edge.
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Post by carlstoys on Apr 24, 2016 11:59:27 GMT -5
Yes they are smooth sized and fit very snug. The jacket thickness of the XTP's and the FTX's appear to be the same so that is why I question why the FTX's are tumbling when the XTP's are not. |
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Post by rambler on Apr 24, 2016 17:01:30 GMT -5
You might want to try some Parker 275be's. They are more expensive but with a .015 jacket thickness they really grab the grooves and give excellent results.
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Post by carlstoys on May 2, 2016 19:37:46 GMT -5
Just to update everyone. I tried Barnes T-EZ bullets and have the same tumbling issues. I also tried the Parker 275 and 300 BE they shot great the 275's shot into one hole at 100 yards. So I guess it's time to order some more from Luke. Thanks to everyone who tried to help. I think I will just stick with the 275BE for now.
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Post by Deleted on May 2, 2016 23:10:21 GMT -5
Just to update everyone. I tried Barnes T-EZ bullets and have the same tumbling issues. I also tried the Parker 275 and 300 BE they shot great the 275's shot into one hole at 100 yards. So I guess it's time to order some more from Luke. Thanks to everyone who tried to help. I think I will just stick with the 275BE for now. In my opinion the reason you are getting the BE's to shoot better is they have thinner jackets than the FTX. Therefore the BE's are obturating into your right and the FTX are not because it isn't obturating. If you use a booster I'm willing to bet your tumbling will disappear with the FTX. |
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Post by edge on May 5, 2016 8:53:28 GMT -5
In my opinion the reason you are getting the BE's to shoot better is they have thinner jackets than the FTX. Therefore the BE's are obturating into your right and the FTX are not because it isn't obturating. If you use a booster I'm willing to bet your tumbling will disappear with the FTX. +1 |
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Post by mtj555 on May 5, 2016 9:40:02 GMT -5
Pretty impressive you were getting 1 inch groups with tumbling bullets. The only time I had keyholing issues was when I first started out with my Savage and shooting the 250 SST over some N110. Not waiting long enough between shots in the summer. Maybe Richard will chime in one what worked for him with those. Seems like they should work if that's what you want to use. You just need to kick them a little faster than what you currently are.
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Post by rangeball on May 5, 2016 9:42:17 GMT -5
Pretty sure Richard will echo the comments and say kick them in the rear with a clays starter  |
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Post by schunter on May 5, 2016 15:07:05 GMT -5
I shoot the 250 FTX sabotless with a 10/50 duplex of 4759/4198 with very good accuracy. Shoot the same bullet with BH209 with very good accuracy as well. The 250 TEZ will shoot as well with the same duplex but is more size sensitive in my experience. Not a problem with tumbling but accuracy suffers.
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